Liquid crystal display

Abstract

A liquid crystal display includes a first substrate and a second substrate which face each other and each include a display area and a peripheral area, a liquid crystal layer in the display areas and between the first substrate and the second substrate, and a conductive sealant combining the first substrate and the second substrate. The first substrate includes a common electrode in the display and peripheral areas of the first substrate. The second substrate includes a first and signal lines in the peripheral area of the second substrate, a first insulating layer on the first signal line and the second signal line, and a conductor on the first insulating layer in the peripheral area and connected to the first signal line through a contact hole. The common electrode includes a cutout corresponding to the conductor, and the cutout is at a corner of the display areas.

What is claimed is: 
     
       1. A liquid crystal display comprising:
 a first substrate and a second substrate which face each other, and each including a display area and a peripheral area; 
 the first substrate comprising a common electrode in the display area and in the peripheral area of the first substrate, 
 the second substrate comprising:
 a first signal line and a second signal line in the peripheral area of the second substrate; 
 a first insulating layer on the first signal line and the second signal line; and 
 a first conductor on the first insulating layer in the peripheral area of the second substrate and connected to the first signal line through a first contact hole; 
 
 a liquid crystal layer in the display area of the first substrate and the second substrate, and between the first substrate and the second substrate; and 
 a conductive sealant between the first substrate and the second substrate, 
 wherein 
 the common electrode of the first substrate includes a cutout overlapping the first conductor of the second substrate, and 
 the cutout is at a corner of the display area. 
 
     
     
       2. The liquid crystal display of  claim 1 , further comprising
 a second insulating layer between the first signal line and the second signal line, and including a second contact hole, and 
 the first conductor electrically connects the first signal line and the second signal line through the first contact hole of the first insulating layer and the second contact hole of the second insulating layer. 
 
     
     
       3. The liquid crystal display of  claim 1 , wherein
 the second substrate further comprises:
 a thin film transistor in the display area of the second substrate; and 
 a pixel electrode connected to the thin film transistor, and 
 
 the first conductor includes the same material as the pixel electrode. 
 
     
     
       4. The liquid crystal display of  claim 1 , wherein
 the first signal line and the second signal line are applied with a common voltage. 
 
     
     
       5. The liquid crystal display of  claim 1 ,
 wherein the second substrate further comprises:
 a third signal line and a fourth signal line different from the first and second signal lines, in the peripheral area of the second substrate and overlapping the conductive sealant; and 
 a second conductor on the first insulating layer in the peripheral area of the second substrate, connected to the third signal line through a third contact hole and overlapping the conductive sealant; and 
 
 further comprising at least one of a first barrier layer on the first substrate and overlapping the conductive sealant and a second barrier layer on the second substrate and overlapping the conductive sealant, 
 wherein the respective barrier layer is between the second conductor and the common electrode. 
 
     
     
       6. A liquid crystal display comprising:
 a first substrate and a second substrate facing each other and each including a display area and a peripheral area; 
 the second substrate further comprising:
 a common electrode in the display area and in the peripheral area, 
 a first signal line in the peripheral area and overlapping the conductive sealant, 
 a first insulating layer on the first signal line; and 
 a first conductor on the first insulating layer in the peripheral area, connected to the first signal line through a first contact hole and overlapping the conductive sealant; 
 
 a liquid crystal layer between the first substrate and the second substrate; 
 a conductive sealant which combines the first substrate and the second substrate to each other; and 
 at least one of a first barrier layer on the first substrate and overlapping the conductive sealant and a second barrier layer on the second substrate and overlapping the conductive sealant, 
 wherein the respective barrier layer is between the first conductor and the common electrode in the peripheral area of the first and second substrates. 
 
     
     
       7. The liquid crystal display of  claim 6 , further comprising:
 a plurality of pixels defined in the display areas, 
 a driving circuit which is in the peripheral areas and controls the pixels, and 
 at least one of a third barrier layer on the first substrate between the display area and the sealant and a fourth barrier layer on the second substrate between the display area and the conductive sealant. 
 
     
     
       8. The liquid crystal display of  claim 7 , wherein
 the first barrier layer, the second barrier layer, the third barrier layer, and the fourth barrier layer have the same width in a first direction. 
 
     
     
       9. The liquid crystal display of  claim 8 , wherein
 an interval in the first direction between the first barrier layer and the second barrier layer, and an interval in the first direction between the third barrier layer and the fourth barrier layer are smaller than the width. 
 
     
     
       10. The liquid crystal display of  claim 7 , further comprising
 a spacer maintaining an interval between the first substrate and the second substrate, and 
 the second barrier layer and the fourth barrier layer include the same material as the spacer. 
 
     
     
       11. The liquid crystal display of  claim 10 , wherein
 thicknesses of the second barrier layer and the fourth barrier layer are smaller than a thickness of the spacer. 
 
     
     
       12. The liquid crystal display of  claim 7 , further comprising
 a color filter on the first substrate or the second substrate, and 
 the first barrier layer and the third barrier layer include the same material as the color filter. 
 
     
     
       13. The liquid crystal display of  claim 7 , wherein
 upper surfaces of the first barrier layer, the second barrier layer, the third barrier layer, and the fourth barrier layer include protrusions and depressions. 
 
     
     
       14. The liquid crystal display of  claim 6 , wherein
 the second substrate further comprises:
 a second signal line in the peripheral area and not overlapping the conductive sealant; and 
 a second conductor on the first insulating layer in the peripheral area, connected to the second signal line through a second contact hole and not overlapping the conductive sealant, 
 
 a void is defined in the common electrode of the first substrate and overlaps the second conductor of the second substrate, and 
 the cutout is at a corner of the display areas.